AddArt is a Firefox extension which replaces advertising images on web pages with art images from a curated database.
The most popular Firefox extension, 'addblockers' prevents advertising images downloads, replacing them with blank space. Steve Lambert and Evan Harper at Eyebeam OpenLab have gone a step further with their AddArt project, a browser extension which replaces advertising images on web pages with art.

"For many, replacing ads with blank space would be enough. AddArt attempts to do something more interesting than just blocking ads - it turns your browser into an art gallery"Â.